Hi, I'm developing a WPF user control (for a commercial application) that does Javascript (ECMAscript) editing with syntax highlighting and some sort of code evaluating. After some days of "heavy googling", thanks to AvalonEdit (SharpDevelop editor) I easily achieved the first requirement, and with Jint now I can somehow evaluate the edited scripts. Now my boss has asked me debugging features, "a la" FireBug (!)... Jint has some debugging support, but before diving into AvalonEdit customization to join UI to the debugging features I'm asking you if there could be an easier solution that I couldn't managed to find in my previous searching. Maybe using SharpDevelop hosting capability and somehow integrating a javascript engine could be easier? Or trying to get something out of FireBug js code? Any advice is welcome. Thank you, Marco